diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2010-05-21 18:06:41 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2013-04-17 21:38:10 +0200 |
| commit | 55bdd694116597d2f16510b121463cd579ba78da (patch) | |
| tree | c8a31f06f746700a1f9b8418602a43c3ea42627e /arch/arm/include/asm/glue-cache.h | |
| parent | 73a09d212ec65b7068a283e6034fa05649d3d075 (diff) | |
ARM: Add base support for ARMv7-M
This patch adds the base support for the ARMv7-M
architecture. It consists of the corresponding arch/arm/mm/ files and
various #ifdef's around the kernel. Exception handling is implemented by
a subsequent patch.
[ukleinek: squash in some changes originating from commit
b5717ba (Cortex-M3: Add support for the Microcontroller Prototyping System)
from the v2.6.33-arm1 patch stack, port to post 3.6, drop zImage
support, drop reorganisation of pt_regs, assert CONFIG_CPU_V7M doesn't
leak into installed headers and a few cosmetic changes]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Jonathan Austin <jonathan.austin@arm.com>
Tested-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'arch/arm/include/asm/glue-cache.h')
| -rw-r--r-- | arch/arm/include/asm/glue-cache.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/include/asm/glue-cache.h b/arch/arm/include/asm/glue-cache.h index cca9f15704ed..65c9faf7a34a 100644 --- a/arch/arm/include/asm/glue-cache.h +++ b/arch/arm/include/asm/glue-cache.h @@ -125,10 +125,37 @@ # endif #endif +#if defined(CONFIG_CPU_V7M) +# ifdef _CACHE +# define MULTI_CACHE 1 +# else +# define _CACHE nop +# endif +#endif + #if !defined(_CACHE) && !defined(MULTI_CACHE) #error Unknown cache maintenance model #endif +#ifndef __ASSEMBLER__ +extern inline void nop_flush_icache_all(void) { } +extern inline void nop_flush_kern_cache_all(void) { } +extern inline void nop_flush_kern_cache_louis(void) { } +extern inline void nop_flush_user_cache_all(void) { } +extern inline void nop_flush_user_cache_range(unsigned long a, + unsigned long b, unsigned int c) { } + +extern inline void nop_coherent_kern_range(unsigned long a, unsigned long b) { } +extern inline int nop_coherent_user_range(unsigned long a, + unsigned long b) { return 0; } +extern inline void nop_flush_kern_dcache_area(void *a, size_t s) { } + +extern inline void nop_dma_flush_range(const void *a, const void *b) { } + +extern inline void nop_dma_map_area(const void *s, size_t l, int f) { } +extern inline void nop_dma_unmap_area(const void *s, size_t l, int f) { } +#endif + #ifndef MULTI_CACHE #define __cpuc_flush_icache_all __glue(_CACHE,_flush_icache_all) #define __cpuc_flush_kern_all __glue(_CACHE,_flush_kern_cache_all) |